The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 03, 2019

Filed:

Jun. 07, 2018
Applicant:

Nxp B.v., Eindhoven, NL;

Inventors:
Assignee:

NXP B. V., Eindhoven, NL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/21 (2006.01); H03F 3/217 (2006.01); H03L 7/093 (2006.01); H03M 3/00 (2006.01);
U.S. Cl.
CPC ...
H03F 3/2173 (2013.01); H03L 7/093 (2013.01); H03M 3/32 (2013.01); H03M 3/406 (2013.01); H03F 2200/351 (2013.01);
Abstract

A loop-filter comprising: a first-integrator, and one or more further-integrators. The first-integrator is an active-RC integrator, and comprises a first-integrator-input-terminal configured to receive: (i) an input-signal, and (ii) a feedback-signal; a first-integrator-first-output-terminal configured to provide a first-integrator-first-output-signal; and one or more first-integrator-further-output-terminals. Each of the one or more further-integrators is a Gm-C integrator, and they are connected in series between the first-integrator-first-output-terminal and a loop-filter-output-terminal. For a first further-integrator in the series, the further-integrator-input-terminal is configured to receive the first-integrator-first-output-signal. For any subsequent further-integrators in the series, the further-integrator-input-terminal is configured to receive: (i) the further-integrator-output-signal from the preceding further-integrator in the series; and (ii) one of the first-integrator-further-output-signals.


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